Q: Battery MacBookPro with Retina 13"

Hi there MarzenaKrywan,

I see that you have a question about possibly replacing the battery on your MacBook. I would like to suggest that you first attempt to troubleshoot your battery issue by utilizing the information in the following article about diagnosing your battery issues and addressing battery concerns:

Mac notebooks: All about batteries - Apple Support

http://support.apple.com/en-us/HT204054

Troubleshooting batteries

 

• Built-In diagnostic tools
• My battery runtime is low
• My battery is not charging
• My battery will not charge to 100%
• My battery is not recognized
• The low battery warning does not display

If you determine that you still would like to replace your battery, you can find some answers to common questions about service for your MacBook using the following article:

Apple - Support - Service Answer Center

http://support.apple.com/kb/index?page=servicefaq&geo=United_States&product=Macn otebooks

Thanks for using the Apple Support Communities. Have a good one!

-Braden